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Four green DDR3 ECC UDIMM modules without heat spreaders

OWC

OWC 32GB (4x8GB) DDR3 1600 CL11 ECC UDIMM memory upgrade

SKU CH-25RM-J82EY

A 32 GB DDR3 ECC UDIMM kit running at 1600 MHz CL11 for ASUSTOR AS7009RDX and AS7012RDX NAS systems

  • Total capacity32 GB (4 × 8 GB)
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8

Capacity 32GB (4 x 8GB)

  • ECC protection guards data integrity with built-in error correction
  • 32 GB kit expands capacity using four 8 GB modules
  • DDR3 1600 speed matches PC3-12800 system requirements
  • 5 V JEDEC voltage ensures warranty-safe operation
  • Validated for ASUSTOR AS7009RDX and AS7012RDX NAS units

OWC 32GB DDR3 1600 ECC Kit

This OWC kit provides 32GB of DDR3 1600 memory across four 8GB unbuffered ECC UDIMMs. Each module runs at CL11 latency with a standard 1.5V supply and uses the 240-pin form factor. The kit is validated for ASUSTOR AS7009RDX and AS7012RDX systems.

Suits ASUSTOR NAS upgrades.

The modules target owners of the listed ASUSTOR models who need ECC error correction and the full 32GB capacity. Builders using consumer motherboards that cannot enable ECC, or who require registered DIMMs, should look at something else.

Deciding spec: 240-pin DDR3 ECC UDIMM at 1600 MT/s

The single specification that determines fit is the 240-pin DDR3 ECC unbuffered UDIMM interface running at 1600 MT/s. Only systems that accept this exact module type and speed will recognise the kit.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $123.99
Cheaper than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (4 × 8 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $3.87 per GB
Cheaper than about 85% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number1E6D32R8032S
Total capacity32 GB (4 × 8 GB)
Product type240-Pin DDR3 ECC UDIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsASUSTOR AS7009RDX
ASUSTOR AS7012RDX

Other versions of this model

5 more in the same range

Questions about this item

Does the 1.5 V DDR3 1600 kit run hot or draw extra power in an ASUSTOR AS7009RDX running 24/7?

The modules operate at standard 1.5 V JEDEC voltage with no heat spreader, so thermal output matches ordinary DDR3 1600 ECC UDIMMs under continuous load.

My ASUSTOR NAS has four DIMM slots — do I need to populate all four with this 32 GB kit for it to work?

The kit contains four matched 8 GB modules; you can install one, two, three or all four, but full 32 GB capacity requires using all four slots.

Will these CL11 ECC UDIMMs work alongside the original memory already installed in an AS7012RDX?

Yes — they are JEDEC-standard DDR3 1600 CL11 2Rx8 ECC unbuffered DIMMs, so they will interleave correctly with identical-spec factory modules.

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